Global Patent Index - EP 0689299 A3

EP 0689299 A3 19970528 - Portable radio unit and antenna gain switching method thereof

Title (en)

Portable radio unit and antenna gain switching method thereof

Title (de)

Verfahren zur Schaltung des Antennenwirkungsgrades in einem tragbaren Funkgerät

Title (fr)

Procédé pour la commutation du gain d'antenne d'un appareil radio portable

Publication

EP 0689299 A3 19970528 (EN)

Application

EP 95304371 A 19950622

Priority

JP 14183794 A 19940623

Abstract (en)

[origin: EP0689299A2] In a radio unit having an antenna, a receiver and a transmitter, the present invention comprises detection means for detecting at least one signal of a receiving call and a sending call; and gain switching means for switching gain of the antenna, based on a detection result of the detection means. <IMAGE>

IPC 1-7

H04B 1/38

IPC 8 full level

H01Q 1/22 (2006.01); H01Q 1/24 (2006.01); H04B 1/38 (2015.01); H04B 1/3822 (2015.01); H04B 7/26 (2006.01); H04W 88/02 (2009.01)

CPC (source: EP KR US)

H01Q 1/244 (2013.01 - EP US); H04B 1/38 (2013.01 - KR); H04B 1/3833 (2013.01 - EP US)

Citation (search report)

Designated contracting state (EPC)

DE GB IT SE

DOCDB simple family (publication)

EP 0689299 A2 19951227; EP 0689299 A3 19970528; EP 0689299 B1 20020911; AU 2164695 A 19960111; AU 699761 B2 19981217; DE 69528115 D1 20021017; DE 69528115 T2 20030102; JP 2581320 B2 19970212; JP H088776 A 19960112; KR 0180324 B1 19990515; KR 960003226 A 19960126; US 6321099 B1 20011120

DOCDB simple family (application)

EP 95304371 A 19950622; AU 2164695 A 19950613; DE 69528115 T 19950622; JP 14183794 A 19940623; KR 19950016769 A 19950621; US 88852897 A 19970707